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* topology: Fix sparc64 build.David Miller2009-01-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Due to changeset ba84be2338d3a2b6020d39279335bb06fcd332e1 ("remove linux/hardirq.h from asm-generic/local.h") the sparc64 build started failing on drivers/base/topology.c: drivers/base/topology.c: In function ‘show_physical_package_id’: drivers/base/topology.c:103: error: implicit declaration of function ‘cpu_data’ drivers/base/topology.c:103: error: request for member ‘proc_id’ in something not a structure or union drivers/base/topology.c: In function ‘show_core_id’: drivers/base/topology.c:106: error: request for member ‘core_id’ in something not a structure or union Adding the obvious fix of including asm/cpudata.h into asm/topology.h on sparc64 doesn't fix it, in fact it makes things worse because of the header file dependency chain: linux/gfp.h --> linux/mmzone.h --> linux/topology.h --> asm/topology.h --> asm/cpudata.h --> linux/percpu.h --> linux/slab.h which results in: include/linux/slub_def.h: In function ‘kmalloc_large’: include/linux/slub_def.h:209: error: implicit declaration of function ‘__get_free_pages’ include/linux/slub_def.h:209: error: ‘__GFP_COMP’ undeclared (first use in this function) include/linux/slub_def.h:209: error: (Each undeclared identifier is reported only once include/linux/slub_def.h:209: error: for each function it appears in.) include/linux/slub_def.h:209: warning: cast to pointer from integer of different size The simplest thing to do is to add yet another one-off hack like parts of the guilty changeset did, by putting an explicit linux/hardirq.h include into drivers/base/topology.c Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2009-01-071-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (24 commits) trivial: chack -> check typo fix in main Makefile trivial: Add a space (and a comma) to a printk in 8250 driver trivial: Fix misspelling of "firmware" in docs for ncr53c8xx/sym53c8xx trivial: Fix misspelling of "firmware" in powerpc Makefile trivial: Fix misspelling of "firmware" in usb.c trivial: Fix misspelling of "firmware" in qla1280.c trivial: Fix misspelling of "firmware" in a100u2w.c trivial: Fix misspelling of "firmware" in megaraid.c trivial: Fix misspelling of "firmware" in ql4_mbx.c trivial: Fix misspelling of "firmware" in acpi_memhotplug.c trivial: Fix misspelling of "firmware" in ipw2100.c trivial: Fix misspelling of "firmware" in atmel.c trivial: Fix misspelled firmware in Kconfig trivial: fix an -> a typos in documentation and comments trivial: fix then -> than typos in comments and documentation trivial: update Jesper Juhl CREDITS entry with new email trivial: fix singal -> signal typo trivial: Fix incorrect use of "loose" in event.c trivial: printk: fix indentation of new_text_line declaration trivial: rtc-stk17ta8: fix sparse warning ...
| * trivial: Fix misspelled firmware in KconfigNick Andrew2009-01-061-1/+1
| | | | | | | | | | | | | | | | | | Fix misspelled firmware in Kconfig It's spelled "firmware". Signed-off-by: Nick Andrew <nick@nick-andrew.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds2009-01-0611-163/+323
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (60 commits) uio: make uio_info's name and version const UIO: Documentation for UIO ioport info handling UIO: Pass information about ioports to userspace (V2) UIO: uio_pdrv_genirq: allow custom irq_flags UIO: use pci_ioremap_bar() in drivers/uio arm: struct device - replace bus_id with dev_name(), dev_set_name() libata: struct device - replace bus_id with dev_name(), dev_set_name() avr: struct device - replace bus_id with dev_name(), dev_set_name() block: struct device - replace bus_id with dev_name(), dev_set_name() chris: struct device - replace bus_id with dev_name(), dev_set_name() dmi: struct device - replace bus_id with dev_name(), dev_set_name() gadget: struct device - replace bus_id with dev_name(), dev_set_name() gpio: struct device - replace bus_id with dev_name(), dev_set_name() gpu: struct device - replace bus_id with dev_name(), dev_set_name() hwmon: struct device - replace bus_id with dev_name(), dev_set_name() i2o: struct device - replace bus_id with dev_name(), dev_set_name() IA64: struct device - replace bus_id with dev_name(), dev_set_name() i7300_idle: struct device - replace bus_id with dev_name(), dev_set_name() infiniband: struct device - replace bus_id with dev_name(), dev_set_name() ISDN: struct device - replace bus_id with dev_name(), dev_set_name() ...
| * | driver core: add root_device_register()Mark McLoughlin2009-01-061-0/+91
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for allocating root device objects which group device objects under /sys/devices directories. Also add a sysfs 'module' symlink which points to the owner of the root device object. This symlink will be used in virtio to allow userspace to determine which virtio bus implementation a given device is associated with. [Includes suggestions from Cornelia Huck] Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | driver core:fix duplicate removing driver link in __device_release_driverMing Lei2009-01-061-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In __device_release_driver(),driver_sysfs_remove() has removed the driver link under device dir in sysfs, but sysfs_remove_link() is called again to do such thing. Remove the duplicate call to sys_remove_link(). Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | Driver core: move the bus notifier call pointsAlan Stern2009-01-061-11/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as1184) changes the location of the notifications in device_add() and device_del(). Now the BUS_NOTIFY_ADD_DEVICE message is sent after dpm_sysfs_add(), which is necessary for clients that want to add attributes to the power/ subdirectory. The BUS_NOTIFY_DEL_DEVICE message is correspondingly moved before dpm_sysfs_remove(). Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | driver core: move knode_bus into private structureGreg Kroah-Hartman2009-01-062-13/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | Nothing outside of the driver core should ever touch knode_bus, so move it out of the public eye. Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | driver core: move knode_driver into private structureGreg Kroah-Hartman2009-01-063-8/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | Nothing outside of the driver core should ever touch knode_driver, so move it out of the public eye. Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | driver core: move klist_children into private structureGreg Kroah-Hartman2009-01-062-13/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | Nothing outside of the driver core should ever touch klist_children, or knode_parent, so move them out of the public eye. Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | driver core: create a private portion of struct deviceGreg Kroah-Hartman2009-01-062-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | This is to be used to move things out of struct device that no code outside of the driver core should ever touch. Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | driver core: struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers2009-01-069-53/+45
| | | | | | | | | | | | | | | | | | Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | PM: Simplify the new suspend/hibernation framework for devicesRafael J. Wysocki2009-01-062-64/+70
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PM: Simplify the new suspend/hibernation framework for devices Following the discussion at the Kernel Summit, simplify the new device PM framework by merging 'struct pm_ops' and 'struct pm_ext_ops' and removing pointers to 'struct pm_ext_ops' from 'struct platform_driver' and 'struct pci_driver'. After this change, the suspend/hibernation callbacks will only reside in 'struct device_driver' as well as at the bus type/ device class/device type level. Accordingly, PCI and platform device drivers are now expected to put their suspend/hibernation callbacks into the 'struct device_driver' embedded in 'struct pci_driver' or 'struct platform_driver', respectively. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@suse.cz> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* / mm: show node to memory section relationship with symlinks in sysfsGary Hade2009-01-062-6/+116
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Show node to memory section relationship with symlinks in sysfs Add /sys/devices/system/node/nodeX/memoryY symlinks for all the memory sections located on nodeX. For example: /sys/devices/system/node/node1/memory135 -> ../../memory/memory135 indicates that memory section 135 resides on node1. Also revises documentation to cover this change as well as updating Documentation/ABI/testing/sysfs-devices-memory to include descriptions of memory hotremove files 'phys_device', 'phys_index', and 'state' that were previously not described there. In addition to it always being a good policy to provide users with the maximum possible amount of physical location information for resources that can be hot-added and/or hot-removed, the following are some (but likely not all) of the user benefits provided by this change. Immediate: - Provides information needed to determine the specific node on which a defective DIMM is located. This will reduce system downtime when the node or defective DIMM is swapped out. - Prevents unintended onlining of a memory section that was previously offlined due to a defective DIMM. This could happen during node hot-add when the user or node hot-add assist script onlines _all_ offlined sections due to user or script inability to identify the specific memory sections located on the hot-added node. The consequences of reintroducing the defective memory could be ugly. - Provides information needed to vary the amount and distribution of memory on specific nodes for testing or debugging purposes. Future: - Will provide information needed to identify the memory sections that need to be offlined prior to physical removal of a specific node. Symlink creation during boot was tested on 2-node x86_64, 2-node ppc64, and 2-node ia64 systems. Symlink creation during physical memory hot-add tested on a 2-node x86_64 system. Signed-off-by: Gary Hade <garyhade@us.ibm.com> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'cpus4096-for-linus-3' of ↵Linus Torvalds2009-01-031-0/+44
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'cpus4096-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (77 commits) x86: setup_per_cpu_areas() cleanup cpumask: fix compile error when CONFIG_NR_CPUS is not defined cpumask: use alloc_cpumask_var_node where appropriate cpumask: convert shared_cpu_map in acpi_processor* structs to cpumask_var_t x86: use cpumask_var_t in acpi/boot.c x86: cleanup some remaining usages of NR_CPUS where s/b nr_cpu_ids sched: put back some stack hog changes that were undone in kernel/sched.c x86: enable cpus display of kernel_max and offlined cpus ia64: cpumask fix for is_affinity_mask_valid() cpumask: convert RCU implementations, fix xtensa: define __fls mn10300: define __fls m32r: define __fls h8300: define __fls frv: define __fls cris: define __fls cpumask: CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS cpumask: zero extra bits in alloc_cpumask_var_node cpumask: replace for_each_cpu_mask_nr with for_each_cpu in kernel/time/ cpumask: convert mm/ ...
| * cpumask: fix compile error when CONFIG_NR_CPUS is not definedMike Travis2009-01-031-1/+1
| | | | | | | | | | | | | | | | CONFIG_NR_CPUS will be defined for all arch's whether SMP or not, but it may not have made it into all arches yet. Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * cpumask: add sysfs displays for configured and disabled cpu mapsMike Travis2008-12-191-0/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: add new sysfs files. Add sysfs files "kernel_max" and "offline" to display the max CPU index allowed (NR_CPUS-1), and the map of cpus that are offline. Cpus can be offlined via HOTPLUG, disabled by the BIOS ACPI tables, or if they exceed the number of cpus allowed by the NR_CPUS config option, or the "maxcpus=NUM" kernel start parameter. The "possible_cpus=NUM" parameter can also extend the number of possible cpus allowed, in which case the cpus not present at startup will be in the offline state. (These cpus can be HOTPLUGGED ON after system startup [pending a follow-on patch to provide the capability via the /sys/devices/sys/cpu/cpuN/online mechanism to bring them online.]) By design, the "offlined cpus > possible cpus" display will always use the following formats: * all possible cpus online: "x$" or "x-y$" * some possible cpus offline: ".*,x$" or ".*,x-y$" where: x == number of possible cpus (nr_cpu_ids); and y == number of cpus >= NR_CPUS or maxcpus (if y > x). One use of this feature is for distros to select (or configure) the appropriate kernel to install for the resident system. Notes: * cpus offlined <= possible cpus will be printed for all architectures. * cpus offlined > possible cpus will only be printed for arches that set 'total_cpus' [X86 only in this patch]. Based on tip/cpus4096 + .../rusty/linux-2.6-for-ingo.git/master + x86-only-patches sent 12/15. Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* | select IOMMU_API when DMAR and/or AMD_IOMMU is selectedJoerg Roedel2009-01-031-0/+1
| | | | | | | | | | | | | | These two IOMMUs can implement the current version of this API. So select the API if one or both of these IOMMU drivers is selected. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
* | add frontend implementation for the IOMMU APIJoerg Roedel2009-01-031-0/+100
|/ | | | | | | | | | | This API can be used by KVM for accessing different types of IOMMUs to do device passthrough to guests. Beside that this API can also be used by device drivers to map non-linear host memory into dma-linear addresses to prevent sgather-gather DMA. UIO may be another user for this API. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
* cpumask: change cpumask_scnprintf, cpumask_parse_user, cpulist_parse, and ↵Rusty Russell2008-12-133-5/+5
| | | | | | | | | | | | | | | | | | | | | | | cpulist_scnprintf to take pointers. Impact: change calling convention of existing cpumask APIs Most cpumask functions started with cpus_: these have been replaced by cpumask_ ones which take struct cpumask pointers as expected. These four functions don't have good replacement names; fortunately they're rarely used, so we just change them over. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: paulus@samba.org Cc: mingo@redhat.com Cc: tony.luck@intel.com Cc: ralf@linux-mips.org Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: cl@linux-foundation.org Cc: srostedt@redhat.com
* sysfs: Fix return values for sysdev_store_{ulong,int}Andi Kleen2008-10-291-2/+4
| | | | | | | | | | | | | | SYSFS: Fix return values for sysdev_store_{ulong,int} Always return the full size instead of the consumed length of the string in sysdev_store_{ulong,int} This avoids EINVAL errors in some echo versions. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* driver core: drivers/base/sys.c: update commentsQinghuang Feng2008-10-291-2/+2
| | | | | | | | | | There are no functions named sys_device_shutdown or sys_device_suspend in the kernel. They should be fixed to sysdev_shutdown and sysdev_suspend respectively. Signed-off-by: Qinghuang Feng <qhfeng.kernel@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* memory_probe: fix wrong sysfs file attributeShaohua Li2008-10-201-1/+3
| | | | | | | | | | This attribute just has a write operation. [akpm@linux-foundation.org: use S_IWUSR as suggested by Randy] Signed-off-by: Shaohua Li <shaohua.li@intel.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* vmscan: unevictable LRU scan sysctlLee Schermerhorn2008-10-201-0/+5
| | | | | | | | | | | | | | | | | | | | | | | This patch adds a function to scan individual or all zones' unevictable lists and move any pages that have become evictable onto the respective zone's inactive list, where shrink_inactive_list() will deal with them. Adds sysctl to scan all nodes, and per node attributes to individual nodes' zones. Kosaki: If evictable page found in unevictable lru when write /proc/sys/vm/scan_unevictable_pages, print filename and file offset of these pages. [akpm@linux-foundation.org: fix one CONFIG_MMU=n build error] [kosaki.motohiro@jp.fujitsu.com: adapt vmscan-unevictable-lru-scan-sysctl.patch to new sysfs API] Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Signed-off-by: Rik van Riel <riel@redhat.com> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* vmstat: mlocked pages statisticsNick Piggin2008-10-201-1/+3
| | | | | | | | | | | | | | | | | Add NR_MLOCK zone page state, which provides a (conservative) count of mlocked pages (actually, the number of mlocked pages moved off the LRU). Reworked by lts to fit in with the modified mlock page support in the Reclaim Scalability series. [kosaki.motohiro@jp.fujitsu.com: fix incorrect Mlocked field of /proc/meminfo] [lee.schermerhorn@hp.com: mlocked-pages: add event counting with statistics] Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Signed-off-by: Rik van Riel <riel@redhat.com> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Unevictable LRU Page StatisticsLee Schermerhorn2008-10-201-0/+6
| | | | | | | | | | | | | | | | Report unevictable pages per zone and system wide. Kosaki Motohiro added support for memory controller unevictable statistics. [riel@redhat.com: fix printk in show_free_areas()] [akpm@linux-foundation.org: fix units in /proc/vmstats] Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Signed-off-by: Rik van Riel <riel@redhat.com> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Debugged-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* vmscan: split LRU lists into anon & file setsRik van Riel2008-10-201-23/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Split the LRU lists in two, one set for pages that are backed by real file systems ("file") and one for pages that are backed by memory and swap ("anon"). The latter includes tmpfs. The advantage of doing this is that the VM will not have to scan over lots of anonymous pages (which we generally do not want to swap out), just to find the page cache pages that it should evict. This patch has the infrastructure and a basic policy to balance how much we scan the anon lists and how much we scan the file lists. The big policy changes are in separate patches. [lee.schermerhorn@hp.com: collect lru meminfo statistics from correct offset] [kosaki.motohiro@jp.fujitsu.com: prevent incorrect oom under split_lru] [kosaki.motohiro@jp.fujitsu.com: fix pagevec_move_tail() doesn't treat unevictable page] [hugh@veritas.com: memcg swapbacked pages active] [hugh@veritas.com: splitlru: BDI_CAP_SWAP_BACKED] [akpm@linux-foundation.org: fix /proc/vmstat units] [nishimura@mxp.nes.nec.co.jp: memcg: fix handling of shmem migration] [kosaki.motohiro@jp.fujitsu.com: adjust Quicklists field of /proc/meminfo] [kosaki.motohiro@jp.fujitsu.com: fix style issue of get_scan_ratio()] Signed-off-by: Rik van Riel <riel@redhat.com> Signed-off-by: Lee Schermerhorn <Lee.Schermerhorn@hp.com> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds2008-10-165-11/+127
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (46 commits) UIO: Fix mapping of logical and virtual memory UIO: add automata sercos3 pci card support UIO: Change driver name of uio_pdrv UIO: Add alignment warnings for uio-mem Driver core: add bus_sort_breadthfirst() function NET: convert the phy_device file to use bus_find_device_by_name kobject: Cleanup kobject_rename and !CONFIG_SYSFS kobject: Fix kobject_rename and !CONFIG_SYSFS sysfs: Make dir and name args to sysfs_notify() const platform: add new device registration helper sysfs: use ilookup5() instead of ilookup5_nowait() PNP: create device attributes via default device attributes Driver core: make bus_find_device_by_name() more robust usb: turn dev_warn+WARN_ON combos into dev_WARN debug: use dev_WARN() rather than WARN_ON() in device_pm_add() debug: Introduce a dev_WARN() function sysfs: fix deadlock device model: Do a quickcheck for driver binding before doing an expensive check Driver core: Fix cleanup in device_create_vargs(). Driver core: Clarify device cleanup. ...
| * Driver core: add bus_sort_breadthfirst() functionGreg Kroah-Hartman2008-10-161-0/+50
| | | | | | | | | | | | | | | | | | | | | | | | The PCI core wants to reorder the devices in the bus list. So move this functionality out of the pci core and into the driver core so that anyone else can also do this if needed. This also lets us change how struct device is attached to drivers in the future without messing with the PCI core. Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * kobject: Fix kobject_rename and !CONFIG_SYSFSEric W. Biederman2008-10-161-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When looking at kobject_rename I found two bugs with that exist when sysfs support is disabled in the kernel. kobject_rename does not change the name on the kobject when sysfs support is not compiled in. kobject_rename without locking attempts to check the validity of a rename operation, which the kobject layer simply does not have the infrastructure to do. This patch documents the previously unstated requirement of kobject_rename that is the responsibility of the caller to provide mutual exclusion and to be certain that the new_name for the kobject is valid. This patch modifies sysfs_rename_dir in !CONFIG_SYSFS case to call kobject_set_name to actually change the kobject_name. This patch removes the bogus and misleading check in kobject_rename that attempts to see if a rename is valid. The check is bogus because we do not have the proper locking. The check is misleading because it looks like we can and do perform checking at the kobject level that we don't. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * platform: add new device registration helperDmitry Baryshkov2008-10-161-0/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a helper that registers simple platform_device w/o resources but with parent and device data. This is usefull to cleanup platform code from code that registers such simple devices as leds-gpio, generic-bl, etc. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: make bus_find_device_by_name() more robustPeter Korsgaard2008-10-161-3/+1
| | | | | | | | | | | | | | | | | | Use sysfs_streq() in bus_find_device_by_name() so trailing newlines are ignored (E.G. in bind/unbind). Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * debug: use dev_WARN() rather than WARN_ON() in device_pm_add()Arjan van de Ven2008-10-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | device_pm_add() has a WARN_ON that is showing relatively high on kerneloops.org, but unfortunately the WARN_ON is less than useful in that it doesn't print any information about what device is causing the issue. This patch fixes this by turning the WARN_ON() into the newly introduces dev_WARN() which will print information about the device in question. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * device model: Do a quickcheck for driver binding before doing an expensive checkArjan van de Ven2008-10-161-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a quick check for the driver<->device match before taking the locks and doin gthe expensive checks. Taking the lock hurts in asynchronous boot context where the device lock gets hit; one of the init functions takes the lock and goes to do an expensive hardware init; the other init functions walk the same PCI list and get stuck on the lock as a result. For the common case, we can know there's no chance whatsoever of a match if the device isn't in the drivers ID table... so this patch does that check as a best-effort-avoid-the-lock approach. Bootcharts for before and after can be seen at http://www.fenrus.org/before.svg http://www.fenrus.org/after.svg Note the long time "agp_ali_init" takes in the first graph; my laptop doesn't even have an ALI chip in it! (the bootgraphs look a bit dissimilar, but that's the point, the first one has a bunch of arbitrary delays in it that cause it to look very different) This reduces my kernel boot time by about 20% Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: Fix cleanup in device_create_vargs().Cornelia Huck2008-10-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | If device_register() in device_create_vargs() fails, the device must be cleaned up with put_device() (which is also fine on NULL) instead of kfree(). Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * Driver core: Clarify device cleanup.Cornelia Huck2008-10-161-5/+18
| | | | | | | | | | | | | | | | | | | | | | | | Make the comments on how to use device_initialize(), device_add() and device_register() a bit clearer - in particular, explicitly note that put_device() must be used once we tried to add the device to the hierarchy. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * driver core: make struct platform_pm_ops staticAdrian Bunk2008-10-161-1/+1
| | | | | | | | | | | | | | | | This patch makes the needlessly global struct platform_pm_ops static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | resource: add resource_type() and IORESOURCE_TYPE_BITSMagnus Damm2008-10-161-14/+17
| | | | | | | | | | | | | | | | | | | | | | | | Add resource_type() and IORESOURCE_TYPE_BITS. They make it easier to add more resource types without having to rewrite tons of code. Signed-off-by: Magnus Damm <damm@igel.co.jp> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Jean Delvare <khali@linux-fr.org> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | firmware: use dev_printk when possibleBjorn Helgaas2008-10-161-14/+10
| | | | | | | | | | | | | | | | | | Convert printks to use dev_printk(). Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Fix typo in the FIRMWARE_IN_KERNEL helpAlberto Bertogli2008-10-161-1/+1
| | | | | | | | | | | | Signed-off-by: Alberto Bertogli <albertito@blitiri.com.ar> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | vsprintf: use new vsprintf symbolic function pointer formatBjorn Helgaas2008-10-161-5/+2
|/ | | | | | | | | | | | | | | | | | | | | | | | Use the '%pF' format to get rid of an "#ifdef DEBUG" and make some printks atomic. This removes the last in-tree uses of print_fn_descriptor_symbol(). I marked print_fn_descriptor_symbol() deprecated and scheduled it for removal next year to give time for out-of-tree modules to be updated. parisc's print_fn_descriptor_symbol() is currently broken there (it needs to dereference the function pointer similar to ia64 and power). This patch shouldn't make anything worse, but it means we need to fix dereference_function_descriptor() instead of print_fn_descriptor_symbol() to get meaningful initcall_debug output. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* driver-core: use klist for class device list and implement iteratorTejun Heo2008-10-093-37/+107
| | | | | | | | | | | | | | | | | | | | | | Iterating over entries using callback usually isn't too fun especially when the entry being iterated over can't be manipulated freely. This patch converts class->p->class_devices to klist and implements class device iterator so that the users can freely build their own control structure. The users are also free to call back into class code without worrying about locking. class_for_each_device() and class_find_device() are converted to use the new iterators, so their users don't have to worry about locking anymore either. Note: This depends on klist-dont-iterate-over-deleted-entries patch because class_intf->add/remove_dev() depends on proper synchronization with device removal. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* PM: Remove WARN_ON from device_pm_addRafael J. Wysocki2008-08-211-4/+2
| | | | | | | | | | | | | | | | | PM: Remove WARN_ON from device_pm_add Fix message in device_pm_add() saying that the device will not be added to dpm_list, although in fact the device is going to be added to the list regardless of the ordering violation. Remove the WARN_ON(true) triggered in that situation, because it is hit by USB very often and spams the users' logs. This patch fixes bug #11263 Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* driver core: add init_name to struct deviceGreg Kroah-Hartman2008-08-211-7/+13
| | | | | | | | | This gives us a way to handle both the bus_id and init_name values being used for a while during the transition period. Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* PM: don't skip device PM init when CONFIG_PM_SLEEP isn't set and CONFIG_PM ↵Alan Stern2008-08-213-15/+16
| | | | | | | | | | | | | | | | | | | is set This patch (as1124) fixes a couple of bugs in the PM core. The new dev->power.status field should be initialized regardless of whether CONFIG_PM_SLEEP is enabled, and similarly dpm_sysfs_add() should be called whenever CONFIG_PM is enabled. The patch separates out the call to dpm_sysfs_add() from the call to device_pm_add(). As a result device_pm_add() can no longer return an error, so its return type is changed to void. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Tested-by: Romit Dasgupta <romit@ti.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* driver model: anti-oopsing medicineDavid Brownell2008-08-211-0/+11
| | | | | | | | | | | | Anti-oops medicine for the class iterators ... the oops was observed when a class was implicitly referenced before it was initialized. [Modified by Greg to spit a warning back so someone knows to fix their code] Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* dev_printk(): constify the `dev' argumentJean Delvare2008-08-211-1/+1
| | | | | | | | | | | | | Add const markings to dev_name and dev_driver_string to make it clear that dev_printk doesn't modify dev. This is a prerequisite to adding more const markings to other functions make it clearer, which functions can modify dev and which can't. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* drivers/base/driver.c: remove unused to_dev() macroJoe Perches2008-08-211-3/+0
| | | | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Merge branch 'core-fixes-for-linus' of ↵Linus Torvalds2008-08-011-0/+1
|\ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: locking: fix mutex @key parameter kernel-doc notation
| * locking: fix mutex @key parameter kernel-doc notationRandy Dunlap2008-07-281-0/+1
| | | | | | | | | | | | | | | | | | | | Fix @key parameter to mutex_init() and one of its callers. Warning(linux-2.6.26-git11//drivers/base/class.c:210): No description found for parameter 'key' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 21:31:18 +0000